No, that sounds very reasonable to me. Everything I've read/heard says not to lose more than 2 lbs/wk, and your goal is even less stringent than that. You can do it! The first 5 lbs. will be mostly water anyway and will come off fairly easily; the next 10 will be harder but very doable. I would up your exercise to at least five times a week, though. It doesn't have to be the gym. Walk, ride the trainer, whatever, but just get moving as often as possible to kick your metabolism into high gear. Good luck!

Emily